This close-up of the rough terrain near Mars' Zilair Crater was snapped by the High Resolution (HiRISE) camera aboard NASA's Mars Reconnaissance Orbiter on August 3. It's one of several amazing new images that make for some beautiful desktop wallpaper.

The Orbiter has been studying Mars since 2006, and the new shots below add to a collection of over 1,500 taken by the HiRISE camera since April.

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Because the HiRISE images are taken in red, blue-green and infrared, the images you see are not true color, but the result of several techniques to make them better for humans to look at.